Eight-Nation Alliance refers to Britain, France, Germany, Russia, the United States, Japan, Italy, Austria, Hungary and Eight-Nation Alliance that invaded China by military action from 65438 to 0900. In the early stage, it was led by British navy general Seymour. At first, the total number was around 30 thousand, but later it increased. This incident ended when China was defeated, the allied forces occupied the capital Beijing, the Qing government fled to Xi 'an, Shaanxi Province, and China paid huge reparations after the peace talks.

Among the eight countries, Japan sent the most troops, with 23,000 soldiers, 18 warships and 540 marines. The Austro-Hungarian Empire sent 23,540 troops, with a minimum of 75, making Japan the main force of Eight-Nation Alliance.